Department of Aquatic Pollution and Toxicology, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
Research Article
Comparative Assessment of Heavy Metals Bioaccumulation in the Tissues of African Catfish (Clarias gariepinus) Collected from Otin, Oba, Ogun and Agbabu Rivers, South-Western Nigeria
Author(s): Toyeeb Adetunji Omosanya*
Heavy metal contamination has devastating effects on the ecological balance of recipient water bodies and the diver- sity of aquatic organisms present therein. Fish are widely used to evaluate the health of aquatic ecosystems because pollutants build up in the food chain which results in adverse effects in the aquatic systems. African catfish (Clarias gariepinus) is of great commercial importance because it is the most widely consumed freshwater fish in Nigeria. In this research, heavy metal pollutants in the tissues of Clarias garienus collected from Otin, Oba, Ogun and Agbabu Rivers in the South-Western Nigeria were investigated to evaluate the bioaccumulation patterns of heavy metals. The fish were collected twice a month for six months from May to November. Concentrations of heavy metals were determined using Atomic Absorption Spectrophotometer (AAS). Resul.. View More»